Dimming Low Voltage LED MR16 Lamps APP NOTE 559 150136 Catalog
2016-10-06
: Pdf 150136-Catalog 150136-Catalog B5 unilog
Open the PDF directly: View PDF 
.
Page Count: 4
Dimming Low-Voltage LED MR16 Lamps
Application Note #559
Revision A
July 2015
1Technical Support — 800.523.9466 (USA)
Light Emitting Diodes (LEDs), also known as Solid State Lighting (SSL), are replacing traditional light sources
in almost all lighting applications. Low-voltage halogen MR16 lamps are among the sources being targeted
for replacement by LEDs. Because these traditional halogen MR16 lamps are simple resistors, their electrical
characteristics and performance are easy to model, regardless of whether they are fed from an ELV or MLV
transformer. LED MR16 lamps are constructed with built-in electronic drivers and can cause several problems
with dimming (See Technical Paper, Challenges of Dimming LED Loads on ELV and MLV Transformers).
Dimming Solutions with MR16 Lamps
1. In the table below, identify the type of transformer used in your application.
2. Ensure that the dimming control model used in your application is listed below. These are the only dimming
controls recommended by Lutron to work successfully with MR16 lamps listed in this document.
Transformer Dimming Control Models1Dimming
Range2Maximum Lamps
per Transformer Maximum Lamps per Control3
MLV4
• E-I Core
• Toroidal
NTLV-600-xx-CPN01995
100% – 20% 3
16
VT-1000MN-x-xx516
GT-250M-xx59
GTJ-250M-xx59
MRF2-6ND-120-xx59
PD-10NXD-xx516
RRD-6NA-xx 9
HQRD-6NA-xx 9
RRD-10ND-xx516
HQRD-10ND-xx516
PHPM-PA-120-WH 30
PHPM-WBX-120-WH 30
HW/LP-RPM-4U-1205Up to 30/channel; 30 total for module
HW/LP-RPM-4A-120 Up to 19/channel; 30 total for module
GP (Harrier) Card530
ELV6
• Hatch RS12-60M-LED
• Lightech LET-75
• Lightech LET-607
NTELV-300-xx
100% – 20% 1
6
NTELV-600-xx 12
DVELV-300P-xx or DVELV-303P-xx 6
CTELV-303P-xx 6
SELV-300P-xx or SELV-303P-xx 6
MAELV-600-xx 12
MRF2-6ELV-120-xx 12
PHPM-PA-120-WH 38
PHPM-WBX-120-WH 38
HW/LP-RPM-4A-120 Up to 24/channel; 38 total for module
1 All dimming controls shown in this document require a neutral connection.
2 This is the dimming range achievable with LED MR16 bulbs. A 20% measured light level is perceived as a 45% light level by the eye. For low-light level
applications (e.g., restaurants, dining rooms, bar areas), energy-efficient halogen MR16 lamps can achieve a less than 1% measured light level which is
perceived as a less than 10% light level by the eye. See Energy-Efficient Halogen MR16 Lamps table.
3 Consider each LED as 50 W. For ganging and derating, refer to dimmer installation guide.
4 All MLV transformers should be equipped with a primary fuse to protect against overheating.
5 Toroidal transformer requires LUT-LBX-WH.
6 ELV transformers are recommended for reducing audible noise from fixtures in new construction.
7 Lightech LET-60LW is NOT recommended for use with any LEDs listed in this document.
Note: If your application does not use any of the above-mentioned transformers, does not have a neutral connection at the wallbox location where
dimming control is to be installed, and/or if it requires a dimming range of less than 20%, using high-efficacy halogen MR16 lamps is suggested (see
Energy-Efficient Halogen MR16 Lamps table).
Continued on next page…
Application Note #559
2www.lutron.com
Dimming Solutions with MR16 Lamps (continued)
3. Select appropriate MR16 lamp.
a. If you require a dimming range of 100% – 20%, select one of the LED MR16 lamps from the following list.
These LED MR16 lamps have been tested for performance and are recommended by Lutron.
LED MR16 Lamps
SORAA® GU5.3 Base: U.S.
Product Family Model Beam Watts Halogen Equivalent
VIVID 2700 7.5W CRI 95, R9 95
SM16-07-10D-927-03 10 7.5 50 W
SM16-07-25D-927-03 25 7.5 50 W
SM16-07-36D-927-03 36 7.5 50 W
VIVID 3000 7.5W CRI 95, R9 95
SM16-07-10D-930-03 10 7.5 50 W
SM16-07-25D-930-03 25 7.5 50 W
SM16-07-36D-930-03 36 7.5 50 W
VIVID 4000 7.5W CRI 95, R9 95
SM16-07-10D-940-03 10 7.5 50 W
SM16-07-25D-940-03 25 7.5 50 W
SM16-07-36D-940-03 36 7.5 50 W
VIVID 5000 7.5W CRI 95, R9 95
SM16-07-10D-950-03 10 7.5 50 W
SM16-07-25D-950-03 25 7.5 50 W
SM16-07-36D-950-03 36 7.5 50 W
BRILLIANT 2700K 7.5W CRI 80
SM16-07-10D-827-03 10 7.5 50 W
SM16-07-25D-827-03 25 7.5 50 W
SM16-07-36D-827-03 36 7.5 50 W
BRILLIANT 3000K 7.5W CRI 80
SM16-07-10D-830-03 10 7.5 50 W
SM16-07-25D-830-03 25 7.5 50 W
SM16-07-36D-830-03 36 7.5 50 W
Note: To view specific SORAA® specification sheets and lamp characteristics, visit www.soraa.com
or
b. If you require a low-light level dimming range of less than 20%, select one of the energy-efficient halogen
MR16 lamps from the following list. These are the only halogen MR16 lamps recommended by Lutron.
Energy-Efficient Halogen MR16 Lamps
Manufacturer Model Wattage Dimming
Range
Rated Equivalent
GE Lighting 79586-Q30MR16HIR/CCG35 30 W 50 W
100% – 1%
OSRAM DECOSTAR 51 ECO SUPERSTAR 25 W 35 W
35 W 50 W
Philips Advantage IRC 20 W 35 W
30 W 50 W
Sylvania TRU-AIM 20 W 35 W
35 W 50 W
4. Wire the load (see following pages for wallbox dimming control wiring diagrams).
Note: Refer to wiring diagrams in the product installation guides for PHPM interfaces, HW/LP-RPM modules,
and GP dimming cards.
Application Note #559
3www.lutron.com
Wallbox Dimming Control Wiring
All dimming controls shown in this document require a neutral connection.
Digital Controls: Single-Pole Wiring
Red2
Blue5 (capped)
Black1
Hot
Neutral
White4
Green3Lighting
Load
Smart
Dimmer
120 V~
60Hz feed
Key
Ground
Wire connector
1 Wire or black screw terminal*
2 Wire or brass/gold screw
terminal*
3 Wire or green screw terminal*
4 Wire or silver screw terminal*
5 Wire or blue screw terminal*
* Smart dimmers and
companion dimmers have
wires or screw terminals.
¤
P
NP
¤
P
NP
Digital Controls: Multi-Location Wiring (Load Side) Note: Smart dimmer must be installed on the load
side of the circuit (except for models GT-250M and
GTJ-250M, which must be installed on the line side).
See next diagram for Grafik TTM wiring.
Red2Red2Red2Red2
Blue5Blue5Blue5Blue5
Black1Black1Black1Black1
Hot
Neutral
White4
Green3Green3Green3Green3Lighting
Load
Companion
Dimmer
Companion
Dimmer
Companion
Dimmer
Smart
Dimmer**
120 V~
60Hz feed
** Supports up to 9 total companion dimmers.
Digital Controls: Multi-Location Wiring (Line Side)
GT-250M, GTJ-250M, with GT-AD
Note: Control must be installed on the line side of
the circuit if using neutral wire.
Red2Red2Red2
Blue5Blue5Blue5
Black1
Hot
Neutral
White4Green3Green3Green3Load
Companion
Dimmer
Companion
Dimmer
Grafik TTM
Dimmer***
120 V~
60Hz feed
*** Supports up to 4 total companion dimmers. Total blue traveler wire length may be up to 150 ft (45 m).
Continued on next page…
4
Application Note #559
Lutron Electronics Co., Inc.
7200 Suter Road
Coopersburg, PA 18036-1299 U.S.A.
P/N 048559 Rev. A 07/2015
Lutron Contact Numbers
WORLD HEADQUARTERS
USA
Lutron Electronics Co., Inc.
7200 Suter Road
Coopersburg, PA 18036-1299
TEL: +1.610.282.3800
FAX: +1.610.282.1243
Toll-Free: 1.888.LUTRON1
Technical Support: 1.800.523.9466
intsales@lutron.com
North and South America
Technical Hotlines
USA, Canada, Caribbean:
1.800.523.9466
Mexico:
+1.888.235.2910
Central/South America:
+1.610.282.6701
EUROPEAN HEADQUARTERS
United Kingdom
Lutron EA Ltd.
6 Sovereign Close
London, E1W 3JF United Kingdom
TEL: +44.(0)20.7702.0657
FAX: +44.(0)20.7480.6899
FREEPHONE (UK): 0800.282.107
Technical Support: +44.(0)20.7680.4481
lutronlondon@lutron.com
ASIAN HEADQUARTERS
Singapore
Lutron GL Ltd.
390 Havelock Road
#07-04 King’s Centre
Singapore 169662
TEL: +65.6220.4666
FAX: +65.6220.4333
Technical Support: 800.120.4491
lutronsea@lutron.com
Asia Technical Hotlines
Northern China: 10.800.712.1536
Southern China: 10.800.120.1536
Hong Kong: 800.901.849
Indonesia: 001.803.011.3994
Japan: +81.3.5575.8411
Macau: 0800.401
Taiwan: 00.801.137.737
Thailand: 001.800.120.665853
Other Countries: +65.6220.4666
Lutron is a registered trademark of Lutron Electronics Co., Inc.
Wallbox Dimming Control Wiring (continued)
All dimming controls shown in this document require a neutral connection.
Key
Ground
Wire connector
Dimmers have wires; switches
have screw terminals.
¤
P
NP
¤
P
NP
Analog Controls: 3-Way Wiring
Red Yellow
Red or Red/White
Brass/Gold
Screw Terminal
Brass/Gold
Screw Terminal
Copper/Black
Screw Terminal
Green
Screw Terminal
Hot
Neutral
WhiteGreen Lighting
Load
3-Way
Switch Dimmer
120 V~
60Hz feed
Note: Dimmer must be installed on the
load side of the circuit.
Analog Controls: Single-Pole Wiring
Red or YellowBlackHot
Neutral
WhiteGreen Lighting
Load
Dimmer
120 V~
60Hz feed
